Martin, James, author
Prentice-Hall, 1976
Buku Teks
Anderson, Alan J.B., Author
Chapman & Hall, 1994
Buku Teks
Anderson, Alan J.B.
Chapman and Hall , 1989
Buku Teks
Couger, J. Daniel, author
John Wiley & Sons, 1984
Buku Teks
by Randall R. Cottrell, James T. Girvan, Denise M. Seabert, Caile Spear, James F. McKenzie
Pearson Education, 2018
Buku Teks